Primer
OPEN SOURCE
CSS framework from GitHub
About
Primer is a CSS framework from GitHub that helps developers build responsive and mobile-first websites. It offers features like grid system, components, and utilities for modern web development.
Pricing
Pricing Type
Open Source
Free tier available
Billing
Billed monthly
Last checked: February 27, 2026
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Key Facts
Categories
Platforms
Web
Company
Primer
Founded
Founded in 2016
Country
Global
Language
English